Home / 154,835.92-213,675.84-86,867.92

Finding the Fourth Proportional to 154,835.92, 213,675.84 and 86,867.92

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Solution

The fourth proportional to 154,835.92, 213,675.84 and 86,867.92 is: 119,879.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,835.92 : 213,675.84 = 86,867.92 : x
  2. Step 2: Convert to fraction form
    154,835.92/213,675.84 = 86,867.92/x
  3. Step 3: Cross multiply
    154,835.92x = 213,675.84 × 86,867.92
  4. Step 4: Simplify right side
    154,835.92x = 18,561,575,775.05
  5. Step 5: Solve for x
    x = 18,561,575,775.05/154,835.92
  6. Step 6: Final answer
    x = 119,879.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.